/* bzflag
 * Copyright (c) 1993-2020 Tim Riker
 *
 * This package is free software;  you can redistribute it and/or
 * modify it under the terms of the license found in the file
 * named COPYING that should have accompanied this file.
 *
 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

/* interface header */
#include "ServerListFilterMenu.h"

/* common implementation headers */
#include "TextUtils.h"
#include "StateDatabase.h"
#include "FontManager.h"

/* local implementation headers */
#include "MenuDefaultKey.h"
#include "HUDDialogStack.h"
#include "MainMenu.h"
#include "ServerListFilter.h"
#include "HUDui.h"
#include "ServerListFilterHelpMenu.h"

ServerListFilterMenu::ServerListFilterMenu()
{
    // add controls
    std::vector<HUDuiControl*>& controls = getControls();

    controls.push_back(createLabel("Server List Filters"));

    firstKeyControl = controls.size();

    for (int i = 1; i <= 9; i++)
    {
        std::string keyLabel = TextUtils::format("Quick Filter %d:", i);
        controls.push_back(createInput(keyLabel));
    }

    lastKeyControl = controls.size() - 1;

    resetPresets = createLabel("Restore default quick filters");
    controls.push_back(resetPresets);

    help = createLabel("Quick filter help");
    controls.push_back(help);

    initNavigation(controls, firstKeyControl, controls.size()-1);
}

ServerListFilterMenu::~ServerListFilterMenu()
{
    ServerListFilterHelpMenu::done();
}

HUDuiDefaultKey* ServerListFilterMenu::getDefaultKey()
{
    return MenuDefaultKey::getInstance();
}

void ServerListFilterMenu::show()
{
    std::vector<HUDuiControl*>& controls = getControls();

    for (int  i = 1; i <= 9; i++)
    {
        HUDuiTypeIn *entry = static_cast<HUDuiTypeIn*>(controls[firstKeyControl + i - 1]);
        std::string keyName = TextUtils::format("listFilter%d", i);
        std::string keyValue = BZDB.get(keyName);
        entry->setString(keyValue);
    }
}

void ServerListFilterMenu::execute()
{
    HUDuiControl* _focus = HUDui::getFocus();
    if (_focus == resetPresets)
    {
        std::vector<HUDuiControl*>& controls = getControls();

        for (int i = 1; i <= 9; i++)
        {
            HUDuiTypeIn *entry = static_cast<HUDuiTypeIn*>(controls[firstKeyControl + i - 1]);
            std::string keyName = TextUtils::format("listFilter%d", i);
            BZDB.set(keyName, BZDB.getDefault(keyName));
            std::string keyValue = BZDB.get(keyName);
            entry->setString(keyValue);
        }
    }
    else if (_focus == help)
        HUDDialogStack::get()->push(ServerListFilterHelpMenu::getServerListFilterHelpMenu());
}

void ServerListFilterMenu::dismiss()
{
    std::vector<HUDuiControl*>& controls = getControls();

    int i;
    for (i=1; i <= 9; i++)
    {
        HUDuiTypeIn *entry = static_cast<HUDuiTypeIn*>(controls[firstKeyControl + i - 1]);
        std::string keyValue = entry->getString();
        std::string keyName = TextUtils::format("listFilter%d", i);
        if (keyValue.empty() && BZDB.isSet(keyName))
            BZDB.unset(keyName);
        else if (!keyValue.empty())
            BZDB.set(keyName, keyValue);
    }
}

void ServerListFilterMenu::resize(int _width, int _height)
{
    HUDDialog::resize(_width, _height);
    int i;

    // use a big font for title, smaller font for the rest
    const float titleFontSize = (float)_height / 15.0f;
    const float fontSize = (float)_height / 45.0f;
    FontManager &fm = FontManager::instance();
    int fontFace = MainMenu::getFontFace();

    // reposition title
    std::vector<HUDuiControl*>& controls = getControls();
    HUDuiLabel* title = (HUDuiLabel*)controls[0];
    title->setFontSize(titleFontSize);
    const float titleWidth = fm.getStrLength(fontFace, titleFontSize, title->getString());
    const float titleHeight = fm.getStrHeight(fontFace, titleFontSize, " ");
    float x = 0.5f * ((float)_width - titleWidth);
    float y = (float)_height - titleHeight;
    title->setPosition(x, y);

    // reposition options
    const float labelWidth = fm.getStrLength(controls[firstKeyControl]->getFontFace(), fontSize,
                             controls[firstKeyControl]->getLabel());
    x = (0.1f * (float)_width) + labelWidth;
    y -= 0.6f * titleHeight;
    const float h = fm.getStrHeight(fontFace, fontSize, " ");
    const int count = controls.size();
    for (i = 1; i < count; i++)
    {
        controls[i]->setFontSize(fontSize);
        // Add extra padding after the last quick filter, and between restore defaults and help
        if (i == lastKeyControl + 1 || i == count - 1)
            y -= 1.0f * h;
        controls[i]->setPosition(x, y);
        y -= 1.0f * h;
    }
}

HUDuiLabel* ServerListFilterMenu::createLabel(const std::string &str)
{
    HUDuiLabel* label = new HUDuiLabel;
    label->setFontFace(MainMenu::getFontFace());
    label->setString(str);
    return label;
}


HUDuiTypeIn* ServerListFilterMenu::createInput(const std::string &label)
{
    HUDuiTypeIn* entry = new HUDuiTypeIn;
    entry->setFontFace(MainMenu::getFontFace());
    entry->setLabel(label);
    entry->setMaxLength(42);
    entry->setColorFunc(ServerListFilter::colorizeSearch);
    return entry;
}

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